LA Chapter 2. prob 7 by 전덕우

2317 days ago by admin

 
       
A = matrix(4,4,[1,-1,0,0,0,1, -1, -1,0, 1, 3, 0,0, 1, 0, 6]) b = vector([0,0,9,9]) print "RREF([A: b]) =" print A.augment(b).rref() print "i = " print A.solve_right(b) 
       
RREF([A: b]) =
[1 0 0 0 3]
[0 1 0 0 3]
[0 0 1 0 2]
[0 0 0 1 1]
i = 
(3, 3, 2, 1)
RREF([A: b]) =
[1 0 0 0 3]
[0 1 0 0 3]
[0 0 1 0 2]
[0 0 0 1 1]
i = 
(3, 3, 2, 1)